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首页> 外文期刊>Nondestructive Testing and Evaluation >An eddy-current-based sensor for preventing knots in metallic wire drawing processes
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An eddy-current-based sensor for preventing knots in metallic wire drawing processes

机译：基于涡流的传感器，用于防止金属拉丝过程中的打结

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摘要

During metallic wire drawing processes, the presence of knots and the failure to detect them can lead to long production interruptions, significant economic losses and a lower quality of final product. Consequently, there is a pressing need to develop methods for real-time detection and prevention of this fault. In this paper, a sensor to prevent the formation of knots during the metallic wire drawing process is presented and evaluated by means of experimental data. This fast, inexpensive, non-contact sensor is based on electromagnetic principles such as eddy current induction, magnetic reluctance variations and magnetic coupling. The proposed sensor without direct contact can detect knots in a target metallic wire by measuring the impedance variations of a calibrated sensing coil caused by either a knot or an unwound loop rising from a wire rod. The incorporation of this type of sensor into a wire-drawing machine can avoid the tightening of the knot, thereby reducing downtime and increasing the security and reliability of the process. Experiments were conducted using a scale model of the above proposed system. This allowed highlighting the sensor's potential by carrying out an automatic, real-time knot detection during steel wire drawing.
机译：在金属拉丝过程中，打结的存在和未能检测到打结会导致长时间的生产中断，重大的经济损失和最终产品的质量降低。因此，迫切需要开发用于实时检测和防止该故障的方法。在本文中，提出了一种传感器，该传感器可防止在金属拉丝过程中形成结，并通过实验数据进行评估。这种快速，廉价的非接触式传感器基于电磁原理，例如涡流感应，磁阻变化和磁耦合。所提出的不直接接触的传感器可以通过测量由线材上的结或未缠绕的环引起的校准的感测线圈的阻抗变化来检测目标金属线中的结。将这种类型的传感器并入拉丝机中可以避免结的拧紧，从而减少停机时间并提高过程的安全性和可靠性。使用上述提议系统的比例模型进行了实验。通过在钢丝拉拔过程中执行自动实时结节检测，可以突出显示传感器的潜力。

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